IMHO.

Single-player games like Ratopia

Below are 17 single-player Steam games similar to Ratopia, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Ratopia page.

Ranked picks

  1. 1
    RimWorld — Steam game cover

    RimWorld

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Indie with Ratopia.

    A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.

    2018StrategyIndieSimulation34.99 USDDeck VerifiedSingle-playerSimilar games →
  2. 2
    Dwarf Fortress — Steam game cover

    Dwarf Fortress

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Indie with Ratopia.

    Build a fortress and try to help your dwarves survive against a deeply generated world. Keep your dwarves happy, grow their community and beware of digging too deeply. The deepest, most intricate simulation of a world that's ever been created.

    2022StrategyIndieSimulation23.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Against the Storm — Steam game cover

    Against the Storm

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Simulation with Ratopia.

    A dark fantasy city builder where you must rebuild civilization in the face of apocalyptic rains. As the Queen’s Viceroy, lead humans, beavers, lizards, foxes, and harpies to reclaim the wilderness and secure a future for civilization's last survivors.

    2023StrategySimulation29.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    Empires of the Undergrowth — Steam game cover

    Empires of the Undergrowth

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Simulation with Ratopia.

    Command swarms of warriors at an unprecedented scale of warfare in this blend of RTS and base-building. Lead ant colonies against the many fearsome threats of the insect world, while building intricate nests, developing pheromone-based tactics, and evolving to meet growing dangers.

    2024StrategySimulation29.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Norland — Steam game cover

    Norland

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Simulation with Ratopia.

    Lead your noble family in this medieval colony sim, facing off against class conflict, religious struggle, and political treachery. Tend to your people’s needs, uncover the lost knowledge of a fallen empire, and engage in nefarious plots against your enemies.

    2024StrategySimulationRPG29.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Clanfolk — Steam game cover

    Clanfolk

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Simulation with Ratopia.

    Clanfolk is a colony sim set in the Scottish Highlands. Harness your environment to survive - fish, gather, hunt, and farm as you prepare for the winter. Build an inn, trade with other clans, have children and marry them off - live life and prosper across the generations.

    2022StrategySimulationRPG29.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Workers & Resources: Soviet Republic — Steam game cover

    Workers & Resources: Soviet Republic

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Simulation with Ratopia.

    Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity.

    2024StrategySimulation39.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Judgment: Apocalypse Survival Simulation — Steam game cover

    Judgment: Apocalypse Survival Simulation

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Indie with Ratopia.

    Build, scavenge, craft, and perform occult rituals to survive in a demon-infested, post-apocalyptic colony simulation. Will you survive Judgment day?

    2018StrategyIndieSimulation19.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Oxygen Not Included — Steam game cover

    Oxygen Not Included

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Indie and Simulation with Ratopia.

    Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.

    2019IndieSimulation24.99 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    Terraria — Steam game cover

    Terraria

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Indie and Adventure with Ratopia.

    Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!

    2011ActionIndieAdventure9.99 USDDeck VerifiedSingle-playerSimilar games →
  11. 11
    Anno 1800 — Steam game cover

    Anno 1800

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Simulation with Ratopia.

    Anno 1800™ – Lead the Industrial Revolution! Welcome to the dawn of the Industrial Age. The path you choose will define your world. Are you an innovator or an exploiter? A conqueror or a liberator? How the world remembers your name is up to you.

    2019StrategySimulation59.99 USDDeck PlayableSingle-playerSimilar games →
  12. 12
    Timberborn — Steam game cover

    Timberborn

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Indie with Ratopia.

    Humans are long gone. In a world struck by droughts and toxic waste, will your lumberpunk beavers do any better? A sandbox city-building game featuring ingenious animals, vertical architecture, water physics, and terraforming. Contains high amounts of wood.

    2026StrategyIndieSimulation34.99 USDDeck PlayableSingle-playerSimilar games →
  13. 13
    Ratropolis — Steam game cover

    Ratropolis

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Indie with Ratopia.

    A fusion of roguelite, tower defense, city-building, and deck-building! We created a new kind of real time strategy game filled with addictive and fast-paced gameplay. Create your deck, defend your city, and build the largest Ratropolis in history!

    2020StrategyIndieSimulation7.19 USDDeck PlayableSingle-playerSimilar games →
  14. 14
    Rune Factory 5 — Steam game cover

    Rune Factory 5

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Adventure and Simulation with Ratopia.

    As the newest ranger of a peacekeeping organization known as SEED, protect your community by rounding up rowdy monsters and going on special missions. Cultivate your farm and friendships alike while unravelling rune-related mysteries!

    2022AdventureSimulationRPG39.99 USDDeck PlayableSingle-playerSimilar games →
  15. 15
    Rune Factory: Guardians of Azuma — Steam game cover

    Rune Factory: Guardians of Azuma

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Adventure with Ratopia.

    Welcome to the eastern nation of Azuma! In this fresh take on Rune Factory, use your powers as an Earth Dancer to restore the land, its people, and even its gods. Along the way, battle corrupted monsters, rebuild seasonal farms and villages, and form bonds with the colorful locals.

    2025ActionAdventureRPG59.99 USDDeck VerifiedSingle-playerSimilar games →
  16. 16
    Spelunky — Steam game cover

    Spelunky

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Indie with Ratopia.

    Spelunky is a unique platformer with randomized levels that offer a challenging new experience each time you play. Journey deep underground and explore fantastic places filled with all manner of monsters, traps, and treasure.

    2013Indie14.99 USDDeck VerifiedSingle-playerSimilar games →
  17. 17
    Ratocalypse — Steam game cover

    Ratocalypse

    Single-player alternative to Ratopia — playable solo, no multiplayer required. Shares Strategy and Indie with Ratopia.

    A strategy RPG where you design the AI of your characters! The prince of a fallen kingdom, ruined by a zombie plague, investigates the capital overrun with the undead in search of hope to resolve the crisis.

    StrategyIndieAdventureSingle-playerSimilar games →